Troubleshooting; Alarm And Warning Messages - GE AF-600 FP Operating Instructions Manual

9 Troubleshooting

9.1 Alarm-, Warning and Extended Status Word

9.1.1 Alarm and Warning Messages

General
There is a clear distinction between alarms and warnings. In the event of an alarm, the drive will enter a fault condition. After the cause for the alarm has been
cleared, the master must acknowledge the alarm message in order to start operation of the drive again. A warning, on the other hand, may appear when a
warning condition arises, then disappear when conditions return to normal without interfering with the process.
Alarm Word and Warning Word are shown on the display in Hex format. If there is more than one warning or alarm, a sum of all warnings or alarms will be shown.
Warning Word and Alarm Word are displayed in par. DR-90 to DR-95. For more information on the individual alarms and warnings, please refer to: AF-600 FP
Operating Instructions DET-607 or DET-608.
Warnings
All warnings within the drive are represented by a single bit within a Warning Word. A Warning Word is always an action parameter. Bit status FALSE [0] means
no warning, while bit status TRUE [1] means warning. Each bit status has a corresponding text string message. In addition to the Warning Word message the
master will also be notified via a change to bit 7 in the status word.
Alarms
Following an alarm message the drive will enter a fault condition. Only after the fault has been rectified and the master has acknowledged the alarm message
by setting bit 3 in the Control Word, can the Drive resume operation. All alarms within the Drive are represented by a single bit within an Alarm Word. An Alarm
Word is always an action parameter. Bit status FALSE [0] means no alarm, while bit status TRUE [1] means alarm.
AF-600 FP LonWorks
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